Ventilator for cars



(No Model.)

W. BRAIDWOOD. VLNTILATOR190BV GARS, aw. No. 470,540. Patented Mar. 8, 1892.

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XVILLIAM BRAIDVOOD, OF MOUNT VERNON, NEW YORK.

VENTI'LATOR FOR CARS, 840.

SPECIFICATION forming part of Letters Patent No. 470,540, dated March 8, 1892. l Application filed February 19, 189].. Serial No. 382,015. (No model.)

To a/ZZ whom t may concern.-

Be it known that I, WILLIAM BRAIDwooD, a. citizen of the United States, residing at Mount Vernon,in the county of Westchester and State of New York, have invented new and useful Improvements in Veniilators for Cars and other Oonveyances, of which the following is a specification.

This invention relates to an improvement in ventilators for cars, omnibuses, and other conveyances; and the invention consists in the details of construction set forth in the following speciiication and claim, and illustrated in the accompanying drawings, in which- Figure l is a vertical plan view of a car with my ventilator. Fig.2 is a sectional side elevation along Fig. l. Fig. 3 is a section along fg y, Fig. l. Fig. 4. is a section along .e z,

Fig. 1.. Fig. 5 is a section along o fu, Fig. l. Fig. 6 is a section along fw w, Fig. l.

In the drawings, the letters A A indicate two longitudinal trunks or pipes located at the upper part of the car. Outlets B allow the foul air to pass from the interior of the car into one or another of the trunks A. Over the outlet B in each trunk are located delectors O. These delectors are oppositely arranged-that is, the delectors in one trunk are inclined in an opposite direction to the detlectors in the other trunk-so that when the car goes in one direction the deectors in one trunkl come into action, while when the car goes in the opposite direction the deectors in the other trunk come into action. The outlet-passages may be provided with gauze or netting, as seen in Fig. 6. The inlet-ducts I) are provided with swinging lids or covers E, so that by opening or closing. a lid air can be admitted or shut oft', as desired. Each duct has its independent lid, so that the degree and locality of ventilation can be arranged as required. The number of ducts can be increased or diminished, as desired.

The inlet end H of each trunk is straight, while its outlet end is curved, as seen in Fig. l. This inlet end may be somewhat deiiected downward to prevent rain or snow from entering'the trunk. When the car goes in the direction of arrow 1, Fig. 1, air passes into one of the trunks in the direction of arrow 2 and out of the trunk, as indicated by arrow 3,

and in its passage over the detlectors in said p `trunk the air creates a partial vacuum near the incoming air is thrownupward to avoid l drafts onto the heads or feet of the passengers, and, as each lid E has simply to be swung up or down for opening or closing, each passenger, even if inexperienced, can regulate ventilation as required. The ducts 1D lead from a longitudinal pipe or channel F at the lower part of the car, and into this pipe F the air enters from the outside through the passages Gin the side of the car. Thetrunks A have each a valve K, which can be closed when the trunk is not in use, and slides L, operated by a bar M and handle N, can be made to close the outlets B of that trunk A which is not in use. The trunk A which is in use has its valve K and outlets B open, and when the car is reversed the latter trunk has its valve K and outlets B closed, and the trunk formerly closed is then opened or regulated as required.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, with a pair of longitudinal trunks A, each having orifices B, and an inclined immovable detlector O over each orifice, the deflectors in one trunk being inclined in a direction the reverse of those in the other trunk, of the horizontally-movable slides L for governing the orifices of each trunk, a bar M, eXtendin g longitudinally along each trunk and attached to the slides thereof, and a handle N for moving each bar to simultaneously adjust the slides attached to such bar, substantially as described.

2. The combination, with a car or other conveyance, of the horizontal air-pipe F, extending continuously in juxtaposition to the bottom of the car and having a series of air-inlet tubes G extending laterally through the carwall and placing the horizontal -pipe in com- IOO municatjon' with 'the external atmosphere, In testimony whereof I have hereunto set and the series of upright air-duets D, rising my hand in the presence of two subscribing zo inside Jshe car from the horizontal air-pipe, Witnesses.

provided at their upper ends with npwardlyy l swinging lids E and discharging the air per- WILLIAM BRAIDVOOD' pendieularly in a plane parallel with the plane Witnesses:

of the uprightair-ducts, substantially as de- WM. C. HAUFF,

scribed. W. I-IAUFF. 

